Support mount



FIG. 1 is a perspective view of an embodiment of the ornamental design of the support mount.

FIG. 2 is a front/back view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken-line disclosure in the views is understood to represent portions of the article in which the claimed design is embodied, but which form no part of the claimed design. 

CLAIM The ornamental design for a support mount, as shown and described. 